John 18:15-18

Simon Peter and another disciple were following Jesus. Because this disciple was known to the high priest, he went with Jesus into the high priest's courtyard, but Peter had to wait outside at the door. The other disciple, who was known to the high priest, came back, spoke to the servant girl on duty there and brought Peter in. "You aren't one of this man's disciples too, are you?" she asked Peter. He replied, "I am not." It was cold, and the servants and officials stood around a fire they had made to keep warm. Peter also was standing with them, warming himself.

Because this disciple was known to the high priest 
Matthew 26:58  But Peter followed him at a distance, right up to the courtyard of the high priest. He entered and sat down with the guards to see the outcome.
Mark 14:54  Peter followed him at a distance, right into the courtyard of the high priest. There he sat with the guards and warmed himself at the fire.
Luke 22:54-55  Seizing him (Jesus), they led him away and took him into the house of the high priest. Peter followed at a distance. And when some there had kindled a fire in the middle of the courtyard and had sat down together, Peter sat down with them. 

"You aren't one of this man's disciples too, are you?" she asked Peter. He replied, "I am not." 
John 18:25-27   Meanwhile, Simon Peter was still standing there warming himself. So they asked him, "You aren't one of his disciples too, are you?" He denied it, saying, "I am not." One of the high priest's servants, a relative of the man whose ear Peter had cut off, challenged him, "Didn't I see you with him in the garden?" Again Peter denied it, and at that moment a rooster began to crow.

It was cold, and the servants and officials stood around a fire they had made to keep warm
John 21: 8-9  The other disciples followed in the boat, towing the net full of fish, for they were not far from shore, about a hundred yards. When they landed, they saw a fire of burning coals there with fish on it, and some bread.

Peter also was standing with them, warming himself 
Mark 14:67-68  When she saw Peter warming himself, she looked closely at him. "You also were with that Nazarene, Jesus," she said. But he denied it. "I don't know or understand what you are talking about," he said, and went out into the entryway.

Scriptures taken from the Holy Bible, New International Version® NIV®, 
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